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by sgarland
304 days ago
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OpenBSD switched their PRNG to arc4random in 2012 (and then ChaCha20 in 2014); depending on how accurate your time estimate is, that could well have been the cause. Linux switched to ChaCha20 in 2016. Related, I stumbled down a rabbit hole of PRNGs last year when I discovered [0] that my Mac was way faster at generating UUIDs than my Linux server, even taking architecture and clock speed into account. Turns out glibc didn’t get arc4random until 2.36, and the version of Debian I had at the time didn’t have 2.36. In contrast, since MacOS is BSD-based, it’s had it for quite some time. [0]: https://gist.github.com/stephanGarland/f6b7a13585c0caf9eb64b... |
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